A composite wave file 23.5 seconds long containing 3 black-throated green warbler (Setophaga virens) songs (at 1.8, 10.5, and 21.6 seconds) and 4 ovenbird (Seiurus aurocapilla) songs (at 5.8, 9.1, 14.8, and 22.0 seconds). The ovenbird song at 14.8 seconds is considerably lower amplitude than the others.